Island that time forgot. Aogashima is a volcanic Japanese island in the Philippine Sea. The island is administered by Tokyo and located approximately 358 kilometres south of Tokyo and 64 kilometres south of Hachijō-jima.
Aogashima Island, Japan - 青ヶ島 日本 while located in the Philippine Sea, is a volcanic Japanese island. The name Aogashima literally means 'blue island' and is technically part of Tokyo despite being located over 200 miles from central Tokyo.